Driving force behind OneRepulic continued success is Ryan Tedder, a prolific songwriter who many newcomers and established artists turn to if they're looking for a solid pop hook.

In a recent interview with NPR, Tedder reveals what he thinks makes a catchy pop hook. "Simplicity and memorability," he explains. "It must be a simple melody and one that I think packs an emotional punch. And the other element would be a basic human concept and you need to say it in a way that hasn't been said before."

He adds, "On 'Good Life' the real hook is the post hook. It's what comes after it. We have this really super simple whistle. I hadn't heard a whistle in a song in forever and that's all I kept hearing on the song so I just whistled this melody into the mic and it really is the hook — it's the catchiest part of the song."